JP3333065B2 - Combine steering device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering device for a combine which performs a steering operation with a single operating lever.

[0002]

2. Description of the Related Art Conventionally, a single operating lever erected on a control column of a combine is tilted left and right with one hand to selectively electrically switch a side clutch device to the left or right, so that the operating direction side is changed. In a steering operation device that performs a steering operation of an aircraft by disengaging a side clutch and applying a side brake as needed, an operation switch of a toggle switch type is protruded from the head of the operation lever, and the operation switch is operated by a thumb. 2. Description of the Related Art There is known a steering operation device in which a side clutch of the side clutch device is turned in the same direction by performing a push-down operation from side to side.

[0003]

However, the operation lever of the conventional type has a toggle switch type operation switch protruding from the grip surface on the head thereof in a foreign matter form. Become
There are drawbacks in that it is difficult to perform the operation of pushing down the operation switch left and right with the thumb, and the operability is poor.

In view of the above, the present invention facilitates the operation with the thumb without greatly protruding the operation switch from the gripping surface of the operation lever, and prevents a malfunction at that time to perform a good steering operation of the combine. It is an object of the present invention to provide a combine steering operation device capable of performing the following.

[0005]

Means for Solving the Problems In order to achieve the above object, a steering operating device for a combine according to the present invention includes a side clutch by tilting a single operating lever 5 erected on a steering unit 4. In the combine in which the device K is steered, a left operation switch 50 and a right operation switch 51 for switching the side clutch device K by pressing the head of the operation lever 5 with a finger.
Provided with in a state of being close the door to the left and right, when manipulating with the left operating switch 50 and the right operating switch 51 at the same time, giving priority to the operation of the right operating switch 51 side,
Aircraft constitutes the side clutch device K to EKO to the right of the already reaper earth side to steering operation.

[0006]

[Work] With the above-described structure, the aircraft body can be steered in the operation direction by tilting the operation lever 5 right and left during a combine operation. Further, by pressing the left operation switch 50 and the right operation switch 51 individually with fingers, the aircraft can be turned around in the same direction as the operation. At this time, when the left operation switch 50 and the right operation switch 51 are simultaneously operated, the right operation switch 51
Is given priority and the aircraft turns to the right.
Combine work can be performed on the cut ground side so as to prevent the remaining cut of the planted grain culm.

[0007]

Embodiment An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a combine provided with a steering operation device according to the present invention, which supports the reaping unit 2 from the front so as to be able to move up and down on the left side of a machine base 1b having crawler-type traveling devices 1a and 1a on the left and right. A threshing unit 3 is mounted on the other side, and a control unit 4 is installed on the other side of the mowing unit 2, and a tank 3a for storing kernels is provided behind the threshing unit 3. In the combine 1, the right side in the forward steering direction is already set. The mowing operation is performed so as to be on the side of the mowing ground.

[0008] The well-known depth transporting body 20 installed between the cutting unit 2 and the feed chain 30 of the threshing unit 3 is provided on the tip side of the culm to be nipped and conveyed to reduce the culm length. A depth sensor S for detection is provided, and as shown in FIG. 5, a depth motor 26 described later is driven forward and reverse by actuation of switches 21, 22, 23, 24 and 25 to operate the depth transport body 20 up and down. In this way, the depth adjustment is performed.

As shown in FIG. 4, a sensor arm 33 for detecting a clogged conveyance of the culm between the culm carrier 31 and the culm carrier 31 is elastically oscillated from a feed chain rail base 34 at the end of the feed chain 30. When the sensor arm 33 is moved upward due to clogging of the culm in the above-mentioned portion,
When the clogging detection switch 35 is turned on, the engine mounted on the body is stopped by the circuit shown in FIG.

On the other hand, as shown in FIG.
A single operation of operating a steering device by tilting left and right on a column 4b erected in front of a driver's seat 4a, and operating a hydraulic device to move the reaper 2 by tilting forward and backward. A lever (multi-lever) 5 is provided. A traveling lever 40 is provided on the left side panel 4c.
And a cutting lever 41, and a threshing lever 4
2 and a display section (display lamp) 43 for displaying the operating state of each lever.

Further, as shown in FIG.
The left and right operation switches 50 and 51, which can be pressed by the thumb of one hand grasped at this position, are brought close to the left and right while the head of the grip 5 a is formed into a smooth and rounded curved shape. It is installed so as to be flush with the curved surface of the grip 5a. The operation lever 5 first disengages the side clutch in the side clutch device K (FIG. 5) by a tilting operation to the left and right. The side clutch device K that is operated by the operation lever 5 includes a link connected to the operation lever 5 and a well-known mechanism such as a hydraulic pressure.

Further, by selectively operating the left operation switch 50 and the right operation switch 51 provided on the operation lever 5, in the embodiment, when the left switch 50a shown in FIG. 5
By turning on 0b, the left side clutch is electrically disengaged and the aircraft turns left. When the right switch 51a is ON, it is turned ON from the right clutch solenoid 51b, in the same manner as described above, so that to the right turning turned down the right side clutch.

As shown in FIG. 5, the switches, actuators and the like of the respective electric systems are connected via a microcomputer M so as to perform corresponding operations. Also, 27,
Reference numeral 28 denotes a warning lamp and a horn activated by the above operation. When the finger simultaneously touches the left operation switch 50 and the right operation switch 51 and the left switch 50a and the right switch 51a are simultaneously turned on, the circuit shown in FIG. The operation on the right operation switch 51 side is prioritized and turned on. This point is important in the present invention.

Thus, in the combine according to the embodiment, the on-road operation requiring a sharp turn operation or the operation for turning at the end of the cutting row is performed exclusively by gripping the operation lever 5 with one hand and tilting it left and right. At the time of the mowing operation in which mowing and threshing are performed along the setting line of the grain stem, the operation can be performed accurately and easily by pressing the left operation switch 50 and the right operation switch 51 by simply pressing the button with a finger.

During the above-mentioned harvesting operation, the left operation switch 5
Even if the 0 and right operation switches 51 are erroneously pressed at the same time, the right operation switch 51 operates preferentially, so that the aircraft turns rightward toward the cut ground side, and Grain stalks can be cut within the cutting width of the cutting unit 2, and a good cutting operation can be performed without leaving uncut culm rows locally on the cut ground side.

Further, since the body does not turn toward the left uncut land side at the same time as the above-mentioned simultaneous operation, there is no need to worry about the occurrence of uncut culms on the already cut ground side, and the head of the operating lever 5 can be used. Left operation switch 50 and right operation switch 5 according to the part shape
1 can be formed flush without prominently projecting, and can be provided in a compact manner so that the thumb operation can be easily performed in close proximity.

Further, as shown in FIG. 7, when a culm occurs between the feed chain 30 and the culm carrier 31 shown in FIG. 4 during the combine operation as described above, the sensor arm 33 is moved by the clogged culm. As shown in FIG. 7A, an exhaust stirrer control circuit E1 which is pushed and moved upward to stop the engine when the clogging detection switch 35 is turned on is incorporated into a main circuit E having a handling depth control circuit. Therefore, when culm clogging occurs as described above, the engine can be stopped and the handling depth transport body 20 can be temporarily stopped on the spot.

Therefore, according to the apparatus having the above-described configuration, unlike the conventional apparatus, when the engine is stopped, the handling depth transport body 2
Since 0 is not operated to the upper limit or the lower limit region by the state detection of the depth sensor S, when performing the combine work by restarting the engine after the culm clogging is eliminated, the depth transporter 20 immediately before the occurrence of the culm clogging, perform the transport action without such threshed clogging or扱残to prevent the occurrence of extreme depth threshing and Asa扱 technique phenomena扱深transport position of the upper can perform better combine work.

[0019]

As described above, the present invention has the following advantages. A left operation switch and a right operation switch for switching operation of the side clutch device are provided along the head shape of the operation lever on the head of a single operation lever that steers the side clutch device with one hand, Since the left operation switch and the right operation switch can be configured close to each other, the operation can be easily performed with the finger of the hand holding the operation lever.

Even if the left operation switch and the right operation switch are simultaneously operated, the operation of the right operation switch on the cut ground side is prioritized. Combine work that can be prevented can be performed favorably without erroneous operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a combine.

FIG. 2 is a plan view of a control unit.

FIG. 3 is a side view of an operation lever.

FIG. 4 is a side view of an end portion of the feed chain.

FIG. 5 is a control circuit diagram.

6A is a main circuit diagram of the steering device, and FIG. 6B is a sub-circuit diagram showing the operation of the left operation switch and the right operation switch of FIG.

7A is a circuit diagram of an engine, and FIG. 7B is a sub-circuit diagram of FIG. 7A.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Combine 2 Cutting part 3 Threshing part 4 Control part 5 Operation lever 50 Left operation switch 51 Right operation switch K Side clutch device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 69/00 303

Claims (1)

(57) [Claims] A side clutch device (K) is operated by tilting a single operation lever (5) provided on a control unit (4).
The left operation switch 5 for switching the side clutch device K by pressing the head of the operation lever 5 with a finger in the combine which is operated to steer
Provided with a 0 and a right operating switch 51 in a state of being close to the left and right, when manipulating with the left operating switch 50 and the right operating switch 51 at the same time, the right operating switch 5
Give priority to the operation of one side, Eko aircraft to the right of pre-cutting the land side
A steering operation device for a combine, wherein the side clutch device K is steered.